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Side-by-side financial comparison of NATURAL GAS SERVICES GROUP INC (NGS) and ProPetro Holding Corp. (PUMP). Click either name above to swap in a different company.

ProPetro Holding Corp. is the larger business by last-quarter revenue ($289.7M vs $46.1M, roughly 6.3× NATURAL GAS SERVICES GROUP INC). On growth, NATURAL GAS SERVICES GROUP INC posted the faster year-over-year revenue change (13.5% vs -9.6%). ProPetro Holding Corp. produced more free cash flow last quarter ($16.8M vs $-20.7M). Over the past eight quarters, NATURAL GAS SERVICES GROUP INC's revenue compounded faster (281.4% CAGR vs -15.5%).

Southern Company Gas, formerly AGL Resources, is an American Fortune 500 energy services holding company headquartered in Atlanta, Georgia. The company's operations consist of natural gas distribution, wholesale services, retail operations, and midstream operations. Southern Company Gas is one of the largest natural gas distribution companies in the United States. The company serves approximately 4.5 million utility customers through its regulated distribution subsidiaries across four states....

ProPetro Holding Corp. is a leading U.S.-based oilfield services provider. It offers hydraulic fracturing, well completion and related supporting services primarily to onshore oil and gas exploration and production operators, with core operations concentrated in the Permian Basin spanning Texas and New Mexico.

NGS vs PUMP — Head-to-Head

Bigger by revenue
PUMP
PUMP
6.3× larger
PUMP
$289.7M
$46.1M
NGS
Growing faster (revenue YoY)
NGS
NGS
+23.1% gap
NGS
13.5%
-9.6%
PUMP
More free cash flow
PUMP
PUMP
$37.5M more FCF
PUMP
$16.8M
$-20.7M
NGS
Faster 2-yr revenue CAGR
NGS
NGS
Annualised
NGS
281.4%
-15.5%
PUMP

Income Statement — Q4 2025 vs Q4 2025

Metric
NGS
NGS
PUMP
PUMP
Revenue
$46.1M
$289.7M
Net Profit
$4.1M
Gross Margin
Operating Margin
15.4%
2.1%
Net Margin
8.9%
Revenue YoY
13.5%
-9.6%
Net Profit YoY
43.2%
EPS (diluted)
$0.32
$0.01

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
NGS
NGS
PUMP
PUMP
Q4 25
$46.1M
$289.7M
Q3 25
$43.4M
$293.9M
Q2 25
$41.4M
$326.2M
Q1 25
$41.4M
$359.4M
Q4 24
$40.7M
$320.6M
Q3 24
$3.3M
$360.9M
Q2 24
$3.6M
$357.0M
Q1 24
$3.2M
$405.8M
Net Profit
NGS
NGS
PUMP
PUMP
Q4 25
$4.1M
Q3 25
$5.8M
$-2.4M
Q2 25
$5.2M
$-7.2M
Q1 25
$4.9M
$9.6M
Q4 24
$2.9M
Q3 24
$5.0M
$-137.1M
Q2 24
$4.3M
$-3.7M
Q1 24
$5.1M
$19.9M
Operating Margin
NGS
NGS
PUMP
PUMP
Q4 25
15.4%
2.1%
Q3 25
24.8%
-2.1%
Q2 25
24.0%
-1.0%
Q1 25
23.0%
2.6%
Q4 24
14.9%
-5.8%
Q3 24
-49.4%
Q2 24
-0.1%
Q1 24
7.5%
Net Margin
NGS
NGS
PUMP
PUMP
Q4 25
8.9%
Q3 25
13.3%
-0.8%
Q2 25
12.5%
-2.2%
Q1 25
11.7%
2.7%
Q4 24
7.0%
Q3 24
150.3%
-38.0%
Q2 24
119.2%
-1.0%
Q1 24
160.7%
4.9%
EPS (diluted)
NGS
NGS
PUMP
PUMP
Q4 25
$0.32
$0.01
Q3 25
$0.46
$-0.02
Q2 25
$0.41
$-0.07
Q1 25
$0.38
$0.09
Q4 24
$0.22
$-0.14
Q3 24
$0.40
$-1.32
Q2 24
$0.34
$-0.03
Q1 24
$0.41
$0.18

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
NGS
NGS
PUMP
PUMP
Cash + ST InvestmentsLiquidity on hand
$91.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$274.7M
$829.8M
Total Assets
$586.8M
$1.3B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
NGS
NGS
PUMP
PUMP
Q4 25
$91.3M
Q3 25
$76.7M
Q2 25
$325.0K
$83.0M
Q1 25
$2.1M
$71.4M
Q4 24
$2.1M
$58.3M
Q3 24
$410.0K
$54.0M
Q2 24
$3.6M
$74.7M
Q1 24
$5.2M
$53.6M
Total Debt
NGS
NGS
PUMP
PUMP
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
$163.0M
Q1 24
$172.0M
Stockholders' Equity
NGS
NGS
PUMP
PUMP
Q4 25
$274.7M
$829.8M
Q3 25
$271.4M
$826.2M
Q2 25
$266.2M
$824.0M
Q1 25
$260.3M
$826.5M
Q4 24
$255.1M
$816.3M
Q3 24
$251.2M
$833.0M
Q2 24
$245.7M
$975.8M
Q1 24
$241.3M
$998.2M
Total Assets
NGS
NGS
PUMP
PUMP
Q4 25
$586.8M
$1.3B
Q3 25
$562.3M
$1.3B
Q2 25
$525.5M
$1.2B
Q1 25
$501.7M
$1.2B
Q4 24
$492.5M
$1.2B
Q3 24
$498.1M
$1.3B
Q2 24
$489.2M
$1.5B
Q1 24
$486.2M
$1.2B
Debt / Equity
NGS
NGS
PUMP
PUMP
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
0.66×
Q1 24
0.71×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
NGS
NGS
PUMP
PUMP
Operating Cash FlowLast quarter
$13.9M
$81.0M
Free Cash FlowOCF − Capex
$-20.7M
$16.8M
FCF MarginFCF / Revenue
-44.8%
5.8%
Capex IntensityCapex / Revenue
74.9%
22.2%
Cash ConversionOCF / Net Profit
3.38×
TTM Free Cash FlowTrailing 4 quarters
$-58.6M
$45.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
NGS
NGS
PUMP
PUMP
Q4 25
$13.9M
$81.0M
Q3 25
$16.8M
$41.7M
Q2 25
$11.0M
$54.2M
Q1 25
$21.3M
$54.7M
Q4 24
$9.4M
$37.9M
Q3 24
$25.9M
$34.7M
Q2 24
$25.5M
$104.9M
Q1 24
$5.6M
$74.8M
Free Cash Flow
NGS
NGS
PUMP
PUMP
Q4 25
$-20.7M
$16.8M
Q3 25
$-25.1M
$-2.4M
Q2 25
$-14.8M
$17.1M
Q1 25
$2.0M
$13.8M
Q4 24
$-5.1M
$10.0M
Q3 24
$-3.2M
$-6.0M
Q2 24
$8.2M
$67.7M
Q1 24
$-5.3M
$40.2M
FCF Margin
NGS
NGS
PUMP
PUMP
Q4 25
-44.8%
5.8%
Q3 25
-57.7%
-0.8%
Q2 25
-35.8%
5.2%
Q1 25
4.9%
3.8%
Q4 24
-12.6%
3.1%
Q3 24
-95.0%
-1.7%
Q2 24
229.5%
19.0%
Q1 24
-167.8%
9.9%
Capex Intensity
NGS
NGS
PUMP
PUMP
Q4 25
74.9%
22.2%
Q3 25
96.5%
15.0%
Q2 25
62.4%
11.4%
Q1 25
46.5%
11.4%
Q4 24
35.8%
8.7%
Q3 24
871.9%
11.3%
Q2 24
486.1%
10.4%
Q1 24
344.5%
8.5%
Cash Conversion
NGS
NGS
PUMP
PUMP
Q4 25
3.38×
Q3 25
2.90×
Q2 25
2.12×
Q1 25
4.38×
5.70×
Q4 24
3.29×
Q3 24
5.17×
Q2 24
6.00×
Q1 24
1.10×
3.75×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

NGS
NGS

Segment breakdown not available.

PUMP
PUMP

Hydraulic Fracturing Segment$203.9M70%
Wireline Operating Segment$55.4M19%
Cementing Operating Segment$29.6M10%

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